Miner Freeport-McMoRan FCX.N has agreed treatment and refining charges (TC/RCs) of $88 a tonne and 8.8 cents per pound for copper concentrate supply in 2023 with Chinese smelters, a source close to negotiations said on Thursday. The charges, paid by miners to smelters to process ore into refined metal, are the highest since 2017 and 35% higher than the 2022 benchmark, due to an expected oversupply of copper concentrate. "The general view (previously) was around $80-$85 but the sentiment had shifted more towards the $85-$90 range in recent weeks," said analyst Craig Lang of consultancy firm CRU. "It was quite a common ... (full story)